Fixes isolation and failure lock issues

src/test/regress/expected/failure_setup.out

@@ -17,3 +17,19 @@ SELECT master_add_node('localhost', :worker_2_proxy_port);  -- an mitmproxy whic
                2
 (1 row)
 
+SELECT result from  run_command_on_all_nodes('ALTER SYSTEM SET citus.enable_ddl_propagation TO ON');
+    result
+---------------------------------------------------------------------
+ ALTER SYSTEM
+ ALTER SYSTEM
+ ALTER SYSTEM
+(3 rows)
+
+SELECT result from  run_command_on_all_nodes('SELECT pg_reload_conf()');
+ result
+---------------------------------------------------------------------
+ t
+ t
+ t
+(3 rows)
+

src/test/regress/expected/isolation_cluster_management.out

@@ -4,6 +4,8 @@ starting permutation: s1a
 step s1a:
     SELECT 1 FROM master_add_node('localhost', 57637);
     SELECT 1 FROM master_add_node('localhost', 57638);
+ SELECT result from run_command_on_all_nodes('ALTER SYSTEM SET citus.enable_ddl_propagation TO ON');
+ SELECT result from run_command_on_all_nodes('SELECT pg_reload_conf()');
 
 ?column?
 ---------------------------------------------------------------------
@@ -15,3 +17,17 @@ step s1a:
        1
 (1 row)
 
+result
+---------------------------------------------------------------------
+ALTER SYSTEM
+ALTER SYSTEM
+ALTER SYSTEM
+(3 rows)
+
+result
+---------------------------------------------------------------------
+t
+t
+t
+(3 rows)
+

src/test/regress/spec/isolation_cluster_management.spec

@@ -3,6 +3,8 @@ step "s1a"
 {
     SELECT 1 FROM master_add_node('localhost', 57637);
     SELECT 1 FROM master_add_node('localhost', 57638);
+	SELECT result from run_command_on_all_nodes('ALTER SYSTEM SET citus.enable_ddl_propagation TO ON');
+	SELECT result from run_command_on_all_nodes('SELECT pg_reload_conf()');
 }
 
 permutation "s1a"

src/test/regress/sql/failure_setup.sql

@@ -3,3 +3,6 @@ SELECT citus.mitmproxy('conn.allow()');
 -- add the workers
 SELECT master_add_node('localhost', :worker_1_port);
 SELECT master_add_node('localhost', :worker_2_proxy_port);  -- an mitmproxy which forwards to the second worker
+
+SELECT result from  run_command_on_all_nodes('ALTER SYSTEM SET citus.enable_ddl_propagation TO ON');
+SELECT result from  run_command_on_all_nodes('SELECT pg_reload_conf()');